CODE EXAMPLE FOR CSHARP

c# .net set exception data

[Serializable]
public class PacketParseException : Exception
{
    public byte[] ByteData
    {
        get
        {
            return (byte[])this.Data["ByteData"];
        }
    }

    public PacketParseException(string message, byte[] data, Exception inner) : base(message, inner)
    {
        this.Data.Add("ByteData", data);
    }
}